A 15-cm-focal-length converging lens is 20 cm to the right
Chapter 35, Problem 35.61(choose chapter or problem)
A 15-cm-focal-length converging lens is 20 cm to the right of a 7.0-cm-focal-length converging lens. A 1.0-cm-tall object is distance L to the left of the first lens. a. For what value of L is the final image of this two-lens system halfway between the two lenses? b. What are the height and orientation of the final image?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer